CLSA-2025-1736783731 kernel: Fix of 10 CVEs

media: edia: dvbdev: fix a use-after-free CVE-2024-27043 - vsock/virtio: Initialization of the dangling pointer occurring in vsk-trans CVE-2024-50264 - net/sched: stop qdisctreereducebacklog on TCHROOT CVE-2024-53057 - bpf: Fix out-of-bounds write in triegetnextkey CVE-2024-50262 - KVM: nSVM:...

kernel: net/sched: Fix UAF when resolving a clash

A use-after-free vulnerability was found in the net/sshd tcfctflowtableprocessconn of the Linux kernel. This flaw allows an attacker with a crafted payload to induce a system crash, resulting in a loss of system availability...

CVE-2024-53164

In modes: NORMAL, this CVE (CVE-2024-53164) concerns the Linux kernel net/sched subsystem. The technical detail provided across connected advisories confirms the vulnerability lies in the ordering of qlen adjustments: sch->q.qlen changes around qdisc_tree_reduce_backlog() must occur before cal...

net/sched: stop qdisc_tree_reduce_backlog on TC_H_ROOT

...

kernel: net: avoid potential underflow in qdisc_pkt_len_init() with UFO

A flaw was found in the Linux kernel's network handling. A local user could craft a specific Generic Segmentation Offload GSO packet with UDP Fragmentation Offload UFO characteristics. This crafted packet could lead to an underflow in the qdiscpktleninit function, causing a kernel NULL pointer...

kernel: net/sched: Fix mirred deadlock on device recursion

In the Linux kernel, the following vulnerability has been resolved: net/sched: Fix mirred deadlock on device recursion The Linux kernel CVE team has assigned CVE-2024-27010 to this issue. Upstream advisory: https://lore.kernel.org/linux-cve-announce/2024050148-CVE-2024-27010-5a68@gregkh/T...

kernel: net/sched: act_api: fix possible infinite loop in tcf_idr_check_alloc()

A vulnerability was found in the Linux kernel's networking subsystem in the actapi implementation within the tcfidrcheckalloc function, which lead to a possible infinite loop when multiple actions with the same index are added, causing the second request to block indefinitely while holding the...

DEBIAN-CVE-2024-50039

In the Linux kernel, the following vulnerability has been resolved: net/sched: accept TCASTAB only for root qdisc Most qdiscs maintain their backlog using qdiscpktlenskb on the assumption it is invariant between the enqueue and dequeue handlers. Unfortunately syzbot can crash a host rather easily...

kernel: net/sched: act_mirred: don't override retval if we already lost the skb

A use-after-free flaw was found in net/sched/actmirred.c in the Linux kernel. This may result in a crash...

kernel: net/sched: act_skbmod: prevent kernel-infoleak

In the Linux kernel, the following vulnerability has been resolved: net/sched: actskbmod: prevent kernel-infoleak syzbot found that tcfskbmoddump was copying four bytes from kernel stack to user space 1. The issue here is that 'struct tcskbmod' has a four bytes hole. We need to clear the structur...

The vulnerability of the taprio_parse_mqprio_opt() function in the network/scheduler subsystem of the Linux operating system allows a attacker to compromise the integrity and accessibility of protected information.

The vulnerability of the taprioparsemqprioopt function in the net/sched/schtaprio.c module, part of the network scheduling subsystem in the Linux operating system’s kernel, is related to insufficient validation of data received from users. Exploiting this vulnerability could allow an attacker to...

kernel: net/sched: act_mirred: don't override retval if we already lost the skb

A use-after-free flaw was found in net/sched/actmirred.c in the Linux kernel. This may result in a crash...

DEBIAN-CVE-2021-47293

In the Linux kernel, the following vulnerability has been resolved: net/sched: actskbmod: Skip non-Ethernet packets Currently tcfskbmodact assumes that packets use Ethernet as their L2 protocol, which is not always the case. As an example, for CAN devices: $ ip link add dev vcan0 type vcan $ ip...

kernel: net/sched: sch_qfq component can be exploited if in qfq_change_agg function happens qfq_enqueue overhead

An out-of-bounds memory write flaw was found in qfqchangeagg in net/sched/schqfq.c in the Traffic Control QoS subsystem in the Linux kernel. This flaw allows a local user to crash or potentially escalate their privileges on the system...

CVE-2024-26815

In the Linux kernel, the following vulnerability has been resolved: net/sched: taprio: proper TCATAPRIOTCENTRYINDEX check taprioparsetcentry is not correctly checking TCATAPRIOTCENTRYINDEX attribute: int tc; // Signed value tc = nlagetu32tbTCATAPRIOTCENTRYINDEX; if tc = TCQOPTMAXQUEUE...

OESA-2024-1347 kernel security update

The Linux Kernel, the operating system core itself. Security Fixes: In the Linux kernel, the following vulnerability has been resolved: net/sched: actct: fix wild memory access when clearing fragments while testing re-assembly/re-fragmentation using actct, it's possible to observe a crash like th...

OESA-2024-1344 kernel security update

The Linux Kernel, the operating system core itself. Security Fixes: In the Linux kernel, the following vulnerability has been resolved: net/sched: actct: fix wild memory access when clearing fragments while testing re-assembly/re-fragmentation using actct, it's possible to observe a crash like th...

Kernel: denial of service in atm_tc_enqueue in net/sched/sch_atm.c due to type confusion

A denial of service flaw was found in atmtcenqueue in net/sched/schatm.c in the Linux kernel. This issue may allow a local attacker to cause a denial of service due to type confusion. Non-negative numbers could indicate a TCACTSHOT condition rather than valid classification results...

CLSA-2024-1705496273 kernel: Fix of 13 CVEs

Bluetooth: L2CAP: Fix use-after-free in l2capsockreadycb CVE-2023-40283 - ipv4: igmp: fix refcnt uaf issue when receiving igmp query packet CVE-2023-6932 - smb: client: fix OOB in smbCalcSize CVE-2023-6606 - net/sched: schhfsc: Ensure inner classes have fsc curve CVE-2023-4623 - net/sched: clsfw:...

kernel: net/sched: Use-after-free vulnerabilities in the net/sched classifiers: cls_fw, cls_u32 and cls_route

This record is a duplicate of CVE-2023-4206, CVE-2023-4207, and CVE-2023-4208. Do not use this CVE record: CVE-2023-4128...